Regenerative coke-oven.



. LECOCQ.

REGENERATIVE COKE OVEN.

APPLICATION FILED AUG-26, 919.

Patented Oct.

3 SHEETS-SHEET I.

OM Q E REGENERA APPLICATION LECOCQ.

TIVE..COKE OVEN. FILED AUG-26.1913.

Patnted Oct. 3, 1916.

SSHEETS-SHEET 2- LQiEEiH ii In 067L501 E. LECOCQL REGENERATIVE COKE OVEN.

APPLICATION FILED AUG-26. I913.

.1;1 99,996. Patented Oct. 3,1916.

3 SHEETS-SHEET s.

EUGENE ncoca. or enussnns'nnrerom. assienon To scorers ennsnann nnxrotms' a cone. 'sYs'raMEs LEcoco .(s oomrrn momma). or'naus'snts. anaem a.

nnennmta'rrvn consoven.

' p s ecification of Letters Patent."

Application filed Am 26,1913. se a1'm.m; a.,;-

To all whom it may concern Be it known-thatJ-I, EUGENE Lnooo a subject of the Kingof Belgium, civilengi- .the present neer, residlng at Brussels, in the Kingdom of Belgium, have invented certam new and useful Improvements in Regenerative Cohe- Ovens, ofwhich the following is a sp'ec fication.

The present invention has for its objecta regenerative coke oven permitting the simultaneous heating of the air and the combustible gas and their distribution in the chambers wth a view of utilizing, for the heating of the oven, gas from blast furnaces or other gas of low heating power.

It has long been known, and was applied in the first place by Siemens, that'to obtain high-temperatures by the use of gas of low. calorific value, it is necessary to previously heat at the same time the air and the gas. In the common forms of. regenerative coke ovens, such as are usually employed, z. e, those heated by the gas from the coke oven, the a r alone is previously heated and these furnaces as I generally hitherto constructed do not allow of. the simultaneous heating of the air and gas. It is true that certain constructions have been proposed in which one part of the regenerators is used for the heating of the a r while the other part can be used .-for the heating of the gas by providing the oven not only with a direct arrival of the gas but moreover with special junction to certain parts of the divided regenerators. These arrangements however present complications and serious difficulties from the point of'view of regulating the gas-and air in each chamber.

The arrangement forming the-object of permitting the air by means of regenerators for the air and regenerators for the gas and assuring by practical and simple means the distribution'of the all and gas i'n-each 'cham her and the independent regulation of the air and'gas in each chamber. 7 For this pur--- pose each oven is provided with four channels, under'the hearth, separate throughout their length and connected to the regenerators in such away that two ad aeent invention has for itsend the of the heating of the gas and channels are. traversed, by the air and thetwo. other adjacent. channels 'by the combustible gas, while the series of.the;four} ;channels ,of the adjacent oven is -.travers'ed by the burnt gases.

Figure 1 is a longitudinal. section voted oven and shows on the left hahd side. a sec- Y tion taken on line A B and onthe. right hand side a section taken on lineJBN of a horizontalsection'xthe upper. half being taken-on line E-F Fig." 2-. and the lower part on line C-D, Fig. 1. Fig. l4; isa section taken on line A B Fig. 2 of the draw ing, said section being taken throughout.

the whole length of the oven;."Fig. 5 is a section onvline B N of Fig.- 2, takeii also throughout the whole length ofthe oven; F 1g. 6 is a detail of the section correspond- .The general arrangement of the oven in 'i-Fig. 2. Fig; 2 is a vertical sectionjtaken on. I the left hand side on line G Hand on the right hand side I-J of Fig. 1. Fig.v 3 is v so far as it relates to the construction of the structure is similar to that shown" in my former application Serial No. 765972wand --consists of a battery ofregenerators for each oven, comprising a pair. of groups of the oven, which regenerators have been designated 9. Each group of regenerators is'distinctand; separate, the groups at the. I

opposite ends of the ovens being separated by a wall 9, While the regenerators of each walls 9, which are connected .by transverse or cross walls 10 (see'Fig. 3). As will be clear from Fig. 2 of the drawings. there is associated with each oven a batte'ryof such regenerators which have been designated from 1 to 8, in this view. Positioned directly above the regenerators are'the ovens, tliree of'such being designated 11, 12 and- .13 in the various views and positioned be tween these oven are the heating chambers "14. and 15. The combustible gas arrives 'al- 85 -regenerat0rs sltuated at opposite ends of ternately by the conduits a b (Fig. 1) situated at the front and back of the ovens. To permit the heating of the gas these conduits are connectedto one half of the regenerators by a pipe provided with a tap 0 and a damper (Z. Also for example the conduits b are connected to two sides of the uneven numbered regenerators 1, 3, 5, 7, etc., while the even numbered regenerators 2, 1, 6, 8, etc., are directly connected to the collecting galleries 6 f without be-' ing able to communicate with the gas inlet conduits. hen the dampers d are raised the odd numbered regenerators are connected directly with the collecting gallery while when they are lowered they cut off these regenerators from the collecting gallery and connect them to the gas inlet conduits a b. Each regenerator g situated in the central part of the battery is provided with a channel It i c ommunicating with two adjacent channels under the hearth so arranged that each ovefi has four corresponding channels is Z m n under the hearth separated from each other and in which the entrance of the gas or air can be regulated by thedampersp.

The action of the oven is as follows: During one period of working the air enters for example by the collecting gallery f and passes directly to the even numbered regenerators g (2, 4, 6, 8, etc.) permanently connected to the collecting gallery. The dampers d situated on this side are lowered so as to put the conduit a in communication with I the odd numbered regenerators. The dampers (Z situated on the opposite side are on the contrary raised to connectall the regenerators situated on this side with the collecting gallery e. The air traverses the even numbered regenerators and the gas traverses the odd numbered regenerators and through the communicating conduits h the air and the gas are conducted to the separate channels is l m a under the .hearth of a given oven, which distribute them to the adjacent chambers of the oven. The burnt gases return through the channels underneath the hearthof the adjacent ovens to give up their heat to the regenerators situated at the other side of the battery; thence they pass through the collecting gallery e and the reversing apparatus and finally escape in the chimney. Referring more specifically to the manner in which the air and gas are conducted to and away from the heating chambers, and assuming that, for example,

the air comes-by the flue f into the regenerators 2, 4, 6 and 8 and that the gas enters by the gas inlet conduit a into the regenerators 1, 3, 5 and 7 on the lefthand side of the 1 oven, as viewed "in Figs. 1 and 4, the air from the regenerator 6 passes through the passage in into the channels is, Z, and is distributed through the conduits 16 and 17 was es (the latter vbeing shown in dotted lines in Fig. 6) into the two heating chambers 14 and 15 adjacent the oven 11, while the gas from the regenerator 5 passes through the conduit It into the sole channels m and a, and is distributed into the same heating chambers 14 and 15 through the conduits 18 and 19, the latter of which is shown in dotted lines in Fig. 6. The mixture of air and gas, therefore, takes place in each of the compartments 10' formed in the heating chambers (see Figs. 1, el and 5), which chambers are serially arranged the whole length of the oven. After the combustion takes place in these chambers the gases of combustion then descend through the adjacent chambers 11', and return through the conduits 22 and 29 from the heating chamber 15, into the sole channels Z, n, positioned beneath the adjacent oven 12, while the burnt gases from the heating chamber 14 return through the openings 21 and 28 into the sole channels is and m positioned under the oven 13. The four channels k, l, m, n, are, therefore, subsequently traversed by ,the burned gases which pass through-the conduits a (see Fig. 5) into the regenerator's 5 and 6 positioned on the righthand side of the oven, and then to the collecting flue e. As will be clear from Fig. 7 adjacent sets of sole channels are connected to the regenerators at opposite ends of the oven so that by using the reversing apparatus in the manner described, it is possible to reverse the flow of air and gas through the sole channels and the various other portions of the regenerators and heating chambers. In the next period the positions of. the dampers (l situated at each side of the oven are reversed and the travel of the gas and of the air and also of the burned gases are similar but in the opposite direction. It will be seen in this arrangement that the channels under the hearth of each oven are four in number and are separate for the whole of their length, and that two adjacent channels is Z (Fig. 3) of one oven are traversed by the air and the other two 112. n by the combustible gas while all the four channels is Z m n of the-adjacent furnace are traversed by the burnt gas. These channels are designated by is Z m n in Figs. 3 and 6. Considering ators may be completely independent of each other or can be isolated one from the other without the one affecting the other.

'What I clalm is: y

1. In a regenerative coke oven, in combination with each oven and its-heating chamber, four separate" sole channels provided under the hearth of eachoven, andmeans including regenerators for supplying two of said sole channels with gas and two with air or for connecting all four of said channels to convey the burnt gases from the heating chambers. g 2. In a regenerative coke oven, in combination a plurality of ovens, a heating chainber adjacent to each of said ovens, two.

' groups of regenerators for each of said ovens, four separate channels arranged .un-' der the hearth of each of sad ovens, con-.

duits connecting said channels in ;pairs with a group of regenerators, and distributing conduits connecting the said channels to two nation a plurality of. ovens, a heating chamber adjacent each oven, four separate sole channels arranged under the hearth of each oven said channels being separate throughout their length, a group of regenerators at opposite ends of each oven, conduits con- 7 necting the sole channels in pairs to adjacent groups of regenerators at the same end of the oven, adjacent sets of'channels being conseparately 'nected to the regenerators at opposite ends of the oven, gas inlet. conduits and collect-.-

ing galleries adjacent the groups of regeneratorsat each end of the oven, means for connecting alternate groups of regenerators at each end of the oven alternately to the gas conduits and collecting galleries, and means for connecting the remaining groups of regenerators at each end of the oven to the collecting galleries.

5. In a regenerative coke oven, in combination a plurality of ovens, a heating chamber adjacent to each of said ovens, four separate channels arranged under the hearth of each of said. ovens, distributing conduits connecting said channels to two adjacent heating chambers, the first and the third of said channels being connected by said] distributing conduits to the heating cham ber of a given oven and the 2d and 4th of said channels being connected by said dis tribut-ing conduits to the heating chamber of the adjacent oven, groups of regenerators situated on each side, under the ovens and heating chambers, the regenerators situated on the same side comprising alternately gas regenerators and air regenerators, a con-- duit connecting each of the said gas and air regenerators to a pair of thechannels under the hearth of each oven, dampers cooperate ingwith each of said conduits, whereby the quantity of gas or of'air in each pair of" channels under the hearth can'be regulated gas inlet conduits, collecting galleries adjacent to the groups of. regenerators, means whereby the air regenerators of each group are permanently connected to the adjacent collecting gallery,

and means whereby the gas regenerators of each group can be connected either to the collecting duits.

In testimony whereof I have aflixed' my signature,

gallery or to the gas inletcon-j EUGENE LEcooQf' 

